Kinetic Aspects of Ethylene Glycol Degradation Using UV-C Activated Hydrogen Peroxide (H2O2/UV-C) | Sciact - CRIS-система Института катализа

Kinetic Aspects of Ethylene Glycol Degradation Using UV-C Activated Hydrogen Peroxide (H2O2/UV-C) Научная публикация

Журнал

Molecules
ISSN: 1420-3049

Вых. Данные

Год: 2025, Том: 30, Номер: 1, Номер статьи : 49, Страниц : 16 DOI: 10.3390/molecules30010049

Ключевые слова

environmental protection; wastewater treatment; ethylene glycol (EG); advanced oxidation processes (AOPs); photodegradation; H2O2/UV-C

Авторы

Fazliev Timur ^1,2 , Lyulyukin Mikhail ^1,2 , Kozlov Denis ^1,2 , Selishchev Dmitry ^1,2

Организации

1	Research and Educational Center “Institute of Chemical Technologies”, Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Russia
2	Competence Center of the National Technological Initiative “Hydrogen as the Basis of a Low-Carbon Economy”, Lavrentieva Ave. 7, Novosibirsk 630090, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

075-15-2024-646

Ethylene glycol (EG) is a contaminant in the wastewater of airports because it is commonly used in aircraft deicing fluids during the cold season in northern regions. Ethylene glycol by itself has relatively low toxicity to mammals and aquatic organisms, but it can lead to a substantial increase in chemical and biological oxygen demands. The contamination of water with EG facilitates the rapid growth of microbial biofilms, which decreases the concentration of dissolved oxygen in water and negatively affects overall biodiversity. The development of a simple method to decompose EG with high efficiency and low operating costs is important. This study revealed that ethylene glycol can be completely oxidized using UV-C activated hydrogen peroxide (H2O2/UV-C) at a high rate (up to 56 mg L–1 h–1) at an optimum EG:H2O2 molar ratio of 1:10–1:15. Air purging the reaction mixture at 1000 cm3 min–1 increases the EG mineralization rate up to two times because the simultaneous action of UV-activated H2O2 and O2 (H2O2 + O2/UV-C) leads to a synergistic effect, especially at low EG:H2O2 ratios. The kinetics and mechanism of EG degradation are discussed on the basis of the concentration profiles of ethylene glycol and intermediate products.

Fazliev T. , Lyulyukin M. , Kozlov D. , Selishchev D.
Kinetic Aspects of Ethylene Glycol Degradation Using UV-C Activated Hydrogen Peroxide (H2O2/UV-C)
Molecules. 2025. V.30. N1. 49 :1-16. DOI: 10.3390/molecules30010049 WOS Scopus OpenAlex

Поступила в редакцию:	15 нояб. 2024 г.
Принята к публикации:	25 дек. 2024 г.
Опубликована online:	26 дек. 2024 г.
Опубликована в печати:	1 янв. 2025 г.

Web of science:	WOS:001395123100001
Scopus:	2-s2.0-85214500783
OpenAlex:	W4405810718

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